Focus 1.8 td 2000 ,no heated screen , cigarette lighter or horn

Hi i just bought a focus 1.8 lx td di 2000 v reg and noticed the heated front screen not working , the light does not come on either when pressed on, also no cigarette lighter power or horn working, could these all run of the same fuse, if any body has any ideas i would be greatfull thanks pete.

i sorted the cigarette lighter out the fuse was not even there, i found out the screen is not working because someone had replaced the screen with a standard one so no heating element in it, but the horn i am struglng with , bought a new horn and fitted it still not working, where abouts is the relay as i dont hear any clicking at all, i have checked the fuse behind the glove box and it seems ok and i have changed it, but still nothing, the car never came with handbook so i am not sure where the relay for the horn is, thanks pete.i sorted the cigarette lighter out the fuse was not even there, i found out the screen is not working because someone had replaced the screen with a standard one so no heating element in it, but the horn i am struglng with , bought a new horn and fitted it still not working, where abouts is the relay as i dont hear any clicking at all, i have checked the fuse behind the glove box and it seems ok and i have changed it, but still nothing, the car never came with handbook so i am not sure where the relay for the horn is, thanks pete.

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There is an alternate problem with the wiring in the cigarette lighter where the wire melts and breaks. If you pull out the cigarette lighter assembly you will see a place where one wire splits into two. Find the damage point and replace the wire with a thicker one.

Did you also check the BATT1 fuse in the engine compartment fuse relay center? You should have 12 volts through the BATT 1 fuse, the red wire connected to one end of the CIG FUSE, and the orange wire from the other end of that fuse to the cigarette lighter. If you lose 12 volts along that path, check for broken or burned wires.

what the ?? is a Y reg focus is it a special model or something ,please state year we dont all live in immigrants haven formally known as UK ,these two components are on different fuses anyway,rear wiper check the rubber boot from the car body to the rear door ,wires get damaged in here ,ciggy lighter ?? take it out and have a look at the earth and or wiring plug ,they overheat and cook if used for lighting ciggys

the horn circuit is that theres 12v fed to one side of horn and works when its return is grounded at the horn button,,the feed to thec/liter may also be the feed to the horn,,the horn staying on may be the button return spring has calapsed and the contacts not seperating